Door-hanger.



E. SCHMID.

DOOR HANGER.

APPLICATION FILED JULYl, 191a.

Patented Sept. 2, 1913.

wi haeooco 6M fi y n/ UNITED STATES PATENT OFFICE.

EMIL SCI-IMID, OF TWINING CITY, DISTRICT OF COLUMBIA.

DOOR-HANGER.

To all whom it may concern:

Be it known that I, EMIL SoHMIn, a e1t1 zen of the United States, residing at Twin ing City, in the District of Columbia, have invented certain new and useful Improvements in Door-Hangers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to door-hangers or devices for slidably suspending in operative position doors, gates or similar closures, and has for an object, among others, that of providing simple, practical, and peculiarly efiicient hangers for either heavy or light doors, and of reducing to a minimum the frictional resistance to which such hangers are ordinarily subjected. I

To this end my invention comprises a suitable track, a pair of carrying wheels connected by an axle, a hanger-ring bearing upon said axle, a collar encircling said ring having a base securely bolted to the door, and a series of anti-friction balls interposed between the grooved outer surface of said hanger-ring and the correspondingly grooved inner surface of said collar.

The present invent-ion further comprises certain novel features of construction and peculiar arrangements of parts which will be hereinafter particularly described and pointed out in the claims following.

In the accompanying drawings Wl'llCl'l form part of this application for Letters- Patent, and whereon corresponding numerals refer to like parts in the several views: Figure 1 is a longitudinal vertical central section through one door-hanger and supporting track. Fig. 2 is a vertical section of the present invention taken on the line 2-2, Fig. 1, showing one of the carrying wheels removed, the supporting track or runway in section, and balance of the structure in side elevation. Fig. 3 is a fragmentary view in side elevation showing a portion of the relatively fiXed collar-base and ball raceway with closure plate removed, and, Fig. 4 is a plan view of said closure late detached.

Reference being had to t e drawings and numerals thereon, 1 indicates a runway, which in the present embodiment of this invention comprises a continuous sheet metal structure open at its under side onl having inwardly and oppositely curle lower Specification of Letters Patent.

AppIication filed. July 1, 1913.

Serial No. 776,749.

edges forming duplicate curved wheel tracks 2, 2, as shown by Fig. 1, said runway equaling in length the distance to be traveled by the door or doors. Fitted to and resting in tracks 2, 2, are a pair of carrying wheels 3, 3 having rounded tread surfaces 4., 4: substantially conforming to the curvature of tracks 3, 3 and rigidly connected by a round axle 5 passing thercthrough. Depending from axle 5, intermediate of the carrying wheels 3, 3, is a hanger-ring 6, annular in form, having a large central opening 7 and grooved upon its periphery as shown at 8, Fig. 1. Surrounding the said hanger-ring 6 is an attaching collar 9 grooved upon its 1nner surface as at 10, and, together with the corresponding groove 8 of ring 6, constituting a raceway for a series of anti-friction balls 11. These balls are introduced into the said raceway by removing closure-plate 12, thus exposing to view a gateway 13 communicating directly with the raceway, but closed when plate 12 is returned by means of a lug 14 on the inner face thereof. Immediately below the removable plate 12 aforesaid the attaching collar 9 is flanged oppositely as at 15, 15, and by means of said flanges securely attached to the top rail or upper surface of the door 16 or similar closure with which the improved hangers are used.

The foregoing being a description of my invention in the best form of construction at present known to me, its use and operation are quite apparent and need not be herein dwelt upon at length. It may, however, be noted that two or more hangers are securely attached to a door as indicated by the drawings, and when so applied in operative position, balls 11 embedded partially in groove 8 of hanger-ring 6, and partly in groove 10 of attaching-collar 9, serve admirably to retain said ring and collar in vertical alinemcnt, and prevent a relative side movement thereof. In devices of this character any considerable side movement is very objectionable, in that it not only increases frictional resistance, but renders the structure noisy by reason of the fact that carrying-wheels such as 3 would otherwise frequently interfere with the inner sides of runways such as 1. This result is particularly objectionable in hotels or apartment houses where hangers of some description are invariably employed upon elevator Patented Sept. ,2, 1 913.

doors, and it is a noteworthy fact that the present construction is designed, arranged and adapted to overcome the difliculties referred to, wholly without the use of guide wheels or rollers so frequently resorted to as centering means with their increasedfrictionalresistanoe andlliability to derangement. It will further be noted that the action of anti-friction balls 11, in the present I now claim Patent is:

7 7 and desire to secure by Letters 1. In a door hanger the combination with a supporting track and roller member, of'a hanger-ring suspended from said roller combination and arrangement of parts, diffe'rs materially from that'of' balls usually employed in ordinary direct acting ball bearings, inasmuch as the balls of the latter are mounted centrally around the Wheelaxle, and therefore must rotate in direct proportion to the revolution of the wheel itself; whereas in the present construction the rotation of balls 11 is reduced in equal proportion as the diameter of axle 5 is to the diameter of the hanger-ring 6. Itis' obvious that the reduction of velocity of balls 11 correspondingly reduces friction and consequent wear on the bearing parts, which reduction is the desired end in all such devices.

While I have shown and described a practical and satisfactory form of my improved door-hanger it should be understood that same may be variously modified within the spirit of my. invention and to such equivalent modifications I now lay claim the same as if herein fully disclosed.

Having thus described my invention, what 2. In a door hanger the combination with a suitable supporting track and carrying wheels, of an axle connecting said wheels, 'a' hanger-ring suspended from said axle, a

collar encircling said ring, a series of ballbe'arings located in a ball-race formed partly in said ring and partly in said collar, and means for securing said hanger to a door.

3. In a door hanger the combination with a pair of parallel tracks, of a pair ofcarrying wheels bearing upon said tracks, an axle connecting said Wheels concentrically, a hanger-ring between said wheels suspended from said axle eccentrically, a collar encircling said ring, a series of anti-friction balls located between said ring'and collar, and flanges for securing said collar member to a door. I i

In testimony whereof I afix my signature, in presence of two subscribing witnesses.

EMIL SCHMID. Witnesses:

M. E. DYRIi, EDWIN L. BRADFORD.

Copies. of this patent nay be obtained for five cents each, by addressing the Commissioner of Patents, 7 i Washington, 13.0.1 

